The teenager was approached by a man outside Slough railway station
A teenage girl was sexually assaulted while a man apparently filmed the attack with a camera attached to his sunglasses.
The 15-year-old was inappropriately touched from behind by a man outside Slough station in Berkshire on Tuesday when another man approached her.
She said she felt he had been filming her because she spotted a wire going from his sunglasses into his bag.
He tried to speak to the girl and followed her for a short distance.
The two men were described as black and aged between 40 and 45.
The man who touched the girl had short hair and wore a grey cardigan, while the man believed to have filmed the assault wore a grey coat-style top, dark cargo bottoms and dark walking boots.
